It looks like the flight from LHR was canceled (281) as well. Neither has terribly revealing information in ExpertFlyer:
DOBA281/29NOV
* OPERATIONAL FLIGHT INFO * BA 281 -1 WE 29NOV17
CITY INFO HOUR (LOCAL)
FLIGHT CANCELLED 0753
OPER
*1A PLANNED FLIGHT INFO* BA 281 -1 WE 29NOV17
DOBA280/29NOV
* OPERATIONAL FLIGHT INFO * BA 280 -1 WE 29NOV17
CITY INFO HOUR (LOCAL)
FLIGHT CANCELLED 0754
OPER
*1A PLANNED FLIGHT INFO* BA 280 -1 WE 29NOV17